Home / 51,976.44-77,920.92-20,794.68

Finding the Fourth Proportional to 51,976.44, 77,920.92 and 20,794.68

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Solution

The fourth proportional to 51,976.44, 77,920.92 and 20,794.68 is: 31,174.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,976.44 : 77,920.92 = 20,794.68 : x
  2. Step 2: Convert to fraction form
    51,976.44/77,920.92 = 20,794.68/x
  3. Step 3: Cross multiply
    51,976.44x = 77,920.92 × 20,794.68
  4. Step 4: Simplify right side
    51,976.44x = 1,620,340,596.71
  5. Step 5: Solve for x
    x = 1,620,340,596.71/51,976.44
  6. Step 6: Final answer
    x = 31,174.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.